I have sendmail running on six Fedora core(1 & 3) machines and i have the following problems on all of them.
1) Concatenation of default domain
If a mail user on my boxes sends an email to a badly formatted or non existant domain the default domain of the server is appended to the end of the address:
so firstname.lastname@example.org gets sent to email@example.com which I then receive ?!
How can I set sendmail to prevent this ?
2) all non existant accounts alias to me
I receive all of the postmaster and root emails - which is fine - however if i have a domain - say "carsprovided.com" on the server with aliases
any email to non existant aliases: to say firstname.lastname@example.org gets delivered into my inbox.
I have removed this domain from local-host-names (to kill it as the company is no longer trading) and i'm getting loads of these.
I'm not sure if this was the case before I removed the domain from local-host-names or not.